Introduction: Metabolic equivalents (METs) are typically used to measure the caloric cost of aerobic exercises, rarely that of resistance exercises. Aim of this study was to investigate the metabolic equivalents of resistance training executed at light-moderate or vigorous effort respectively in type 2 diabetic patients and young subjects. Methods: Twenty type 2 diabetic patients (62.9 ± 6.1 years) and twenty-two young subjects (22.6 ± 1.9 years) performed two training sessions with 2-day recovery between each other: one at vigorous intensity (80% of 1-RM) and one at moderate intensity (60% of 1-RM) at Leg Press, Chest Press and Lat Pull Down. Oxygen consumption was continuously measured from fifteen minutes before the session, during the actual resistance training and for fifteen minutes after the session. Results: In both diabetic patients and young subjects no differences on METs intensities were found between vigorous and moderate intensities. A statistical difference was detected in between groups analysis, with young subject showing a statistical higher METs intensities in both 60% and 80% of 1-RM training sessions when compared with diabetic subject (+66.33%, P<0.01; +60.01%, P<0.01). METs values at rest at the end of the study were significantly higher than baseline values in both groups at both intensities: +0.30±0.25 METs at 60% of 1RM (P<0.01) and +0.19±0.19 METs at 80% of 1RM in type 2 diabetes group, and +0.59±0.34 METs at 60% of 1RM (P<0.01) and +0.50±0.34 METs at 80% of 1RM in young subject group. After 15 minutes of quite rest, both diabetic patients and young subjects revealed no significant differences on METs in within group analysis. However in the between group comparison, at both intensities, data analysis indicated a post-exercise METs significantly higher in young subjects than type 2 diabetes patients (+22.43%, P<0.01; 34.31%, P<0.01). Discussions: In both diabetic patients and young subjects there are no differences in executing a resistance-training program at 60 or 80% of 1-RM. The METs value that best represent training intensities is 5 METs for young subjects and 3 METs for diabetic patients.
Mets equivalent of resistance training sessions executed at two intensities. Differences between healthy subjects and type 2 diabetic patients.
BENVENUTI, Paolo;
2012-01-01
Abstract
Introduction: Metabolic equivalents (METs) are typically used to measure the caloric cost of aerobic exercises, rarely that of resistance exercises. Aim of this study was to investigate the metabolic equivalents of resistance training executed at light-moderate or vigorous effort respectively in type 2 diabetic patients and young subjects. Methods: Twenty type 2 diabetic patients (62.9 ± 6.1 years) and twenty-two young subjects (22.6 ± 1.9 years) performed two training sessions with 2-day recovery between each other: one at vigorous intensity (80% of 1-RM) and one at moderate intensity (60% of 1-RM) at Leg Press, Chest Press and Lat Pull Down. Oxygen consumption was continuously measured from fifteen minutes before the session, during the actual resistance training and for fifteen minutes after the session. Results: In both diabetic patients and young subjects no differences on METs intensities were found between vigorous and moderate intensities. A statistical difference was detected in between groups analysis, with young subject showing a statistical higher METs intensities in both 60% and 80% of 1-RM training sessions when compared with diabetic subject (+66.33%, P<0.01; +60.01%, P<0.01). METs values at rest at the end of the study were significantly higher than baseline values in both groups at both intensities: +0.30±0.25 METs at 60% of 1RM (P<0.01) and +0.19±0.19 METs at 80% of 1RM in type 2 diabetes group, and +0.59±0.34 METs at 60% of 1RM (P<0.01) and +0.50±0.34 METs at 80% of 1RM in young subject group. After 15 minutes of quite rest, both diabetic patients and young subjects revealed no significant differences on METs in within group analysis. However in the between group comparison, at both intensities, data analysis indicated a post-exercise METs significantly higher in young subjects than type 2 diabetes patients (+22.43%, P<0.01; 34.31%, P<0.01). Discussions: In both diabetic patients and young subjects there are no differences in executing a resistance-training program at 60 or 80% of 1-RM. The METs value that best represent training intensities is 5 METs for young subjects and 3 METs for diabetic patients.
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